Move AudioDecoderIsac* to its own files

webrtc/modules/audio_coding/BUILD.gn

 # Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 import("//build/config/arm.gni")
 import("../../build/webrtc.gni")
@@ skipping 394 matching lines @@
 
 config("isac_config") {
   include_dirs = [
     "../../..",
     "codecs/isac/main/interface",
   ]
 }
 
 source_set("isac") {
   sources = [
+    "codecs/isac/main/interface/audio_decoder_isac.h",
     "codecs/isac/main/interface/audio_encoder_isac.h",
     "codecs/isac/main/interface/isac.h",
     "codecs/isac/main/source/arith_routines.c",
     "codecs/isac/main/source/arith_routines.h",
     "codecs/isac/main/source/arith_routines_hist.c",
     "codecs/isac/main/source/arith_routines_logist.c",
+    "codecs/isac/main/source/audio_decoder_isac.cc",
     "codecs/isac/main/source/audio_encoder_isac.cc",
     "codecs/isac/main/source/bandwidth_estimator.c",
     "codecs/isac/main/source/bandwidth_estimator.h",
     "codecs/isac/main/source/codec.h",
     "codecs/isac/main/source/crc.c",
     "codecs/isac/main/source/crc.h",
     "codecs/isac/main/source/decode.c",
     "codecs/isac/main/source/decode_bwe.c",
     "codecs/isac/main/source/encode.c",
     "codecs/isac/main/source/encode_lpc_swb.c",
     "codecs/isac/main/source/encode_lpc_swb.h",
     "codecs/isac/main/source/entropy_coding.c",
     "codecs/isac/main/source/entropy_coding.h",
     "codecs/isac/main/source/fft.c",
     "codecs/isac/main/source/fft.h",
     "codecs/isac/main/source/filter_functions.c",
     "codecs/isac/main/source/filterbank_tables.c",
     "codecs/isac/main/source/filterbank_tables.h",
     "codecs/isac/main/source/filterbanks.c",
     "codecs/isac/main/source/intialize.c",
     "codecs/isac/main/source/isac.c",
+    "codecs/isac/main/source/isac_float_type.h",
     "codecs/isac/main/source/lattice.c",
     "codecs/isac/main/source/lpc_analysis.c",
     "codecs/isac/main/source/lpc_analysis.h",
     "codecs/isac/main/source/lpc_gain_swb_tables.c",
     "codecs/isac/main/source/lpc_gain_swb_tables.h",
     "codecs/isac/main/source/lpc_shape_swb12_tables.c",
     "codecs/isac/main/source/lpc_shape_swb12_tables.h",
     "codecs/isac/main/source/lpc_shape_swb16_tables.c",
     "codecs/isac/main/source/lpc_shape_swb16_tables.h",
     "codecs/isac/main/source/lpc_tables.c",
@@ skipping 34 matching lines @@
 
 config("isac_fix_config") {
   include_dirs = [
     "../../..",
     "codecs/isac/fix/interface",
   ]
 }
 
 source_set("isac_fix") {
   sources = [
+    "codecs/isac/fix/interface/audio_decoder_isacfix.h",
     "codecs/isac/fix/interface/audio_encoder_isacfix.h",
     "codecs/isac/fix/interface/isacfix.h",
     "codecs/isac/fix/source/arith_routines.c",
     "codecs/isac/fix/source/arith_routines_hist.c",
     "codecs/isac/fix/source/arith_routines_logist.c",
     "codecs/isac/fix/source/arith_routins.h",
+    "codecs/isac/fix/source/audio_decoder_isacfix.cc",
     "codecs/isac/fix/source/audio_encoder_isacfix.cc",
     "codecs/isac/fix/source/bandwidth_estimator.c",
     "codecs/isac/fix/source/bandwidth_estimator.h",
     "codecs/isac/fix/source/codec.h",
     "codecs/isac/fix/source/decode.c",
     "codecs/isac/fix/source/decode_bwe.c",
     "codecs/isac/fix/source/decode_plc.c",
     "codecs/isac/fix/source/encode.c",
     "codecs/isac/fix/source/entropy_coding.c",
     "codecs/isac/fix/source/entropy_coding.h",
     "codecs/isac/fix/source/fft.c",
     "codecs/isac/fix/source/fft.h",
     "codecs/isac/fix/source/filterbank_tables.c",
     "codecs/isac/fix/source/filterbank_tables.h",
     "codecs/isac/fix/source/filterbanks.c",
     "codecs/isac/fix/source/filters.c",
     "codecs/isac/fix/source/initialize.c",
+    "codecs/isac/fix/source/isac_fix_type.h",
     "codecs/isac/fix/source/isacfix.c",
     "codecs/isac/fix/source/lattice.c",
     "codecs/isac/fix/source/lattice_c.c",
     "codecs/isac/fix/source/lpc_masking_model.c",
     "codecs/isac/fix/source/lpc_masking_model.h",
     "codecs/isac/fix/source/lpc_tables.c",
     "codecs/isac/fix/source/lpc_tables.h",
     "codecs/isac/fix/source/pitch_estimator.c",
     "codecs/isac/fix/source/pitch_estimator.h",
     "codecs/isac/fix/source/pitch_estimator_c.c",
@@ skipping 263 matching lines @@
     "../../system_wrappers",
   ]
 
   defines = []
 
   if (rtc_include_opus) {
     defines += [ "WEBRTC_CODEC_OPUS" ]
     deps += [ ":webrtc_opus" ]
   }
 }